DE7145933U - Slidable contact finger - Google Patents

Description

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Licentia Patent-Yerwaltungs-GmbH 6000 TtT ^mrt ^ ^r " ¹ ^ xsii / lliß ^ ⁿ 7 ^« ^ eodor-Storn-yii 1

H 71/29 1.12.1971 - FT-N-Hn / rh

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deiMÄxrc a dismissable αηά £ ä Eiöuwüüg 5er Axis of rotation by push buttons or push buttons movable contact fingers Sum contacting various conductor tracks on circuit boards, in particular strip circuit boards from Perasehgarftten.

Ss is with push button assembly «! with bandumao holders for PS-receivers & te known that each station key can be switched to the V8 bands THV I or III or TJBJ 17 /? by turning the button. adjustable 1st. Once the band has been set, the desired program can be retained by pressing the station button.

The rear end of the shaft of each station is formed ao, that 3 steps are formed on his ffwfftBg, where- I is provided for a different band division at each level. Through Drttfevn de »Stationstaate is through the stages one rush buttons swivel joint rocker switch · Hit the rocker switch a plastic rail provided with several contact pieces can be moved via a movable bracket mounted on it, which correspond to the respective band setting in a! toner makes contacts. This arrangement is mechanically very complex. The main aim of the present control system is to solve the problem with viewing smocks Contacting a belt circuit board in different belt settings durchufübrem, where the general keystroke should be kept low.

According to the hiring method, this is solved in such a way that the compact finger consists of an actuating member with at least one contact member and the contact member with at least two contact surfaces « which are connected to one another and have different radial distances from the axis of rotation, on the actuating member is arranged and the contact member when pressing the

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actuating member on a printed circuit board different conductor tracks contacted, wherein the choice of the connecting conductor tracks su can be made by turning the actuator.

Further advantageous details of the hiring are as follows Refer to drawing.

Fig. 1 shows a side view of the Ecataktfiagese and the · Belt circuit board in section,

2 shows a side view of the contact finger with contact surfaces arranged in several stages,

Fig. 3 shows the front view of the switching element

1 with an actuator is referred to, which is designed as a shaft is. At the front end of the shaft, an actuating button and a back-up spring 3 are arranged. According to the tax on the rear Shaft end. Switching element 5 latched, which is designed as a fork-shaped contact plate 6 for mounting and fixing a Contact member is used. The contact plate 6 consists of a shaft? with svei contact surfaces. 8 and 9 on the one and a bast nose 10 at the other end · On the one with the bast » At the end provided with the nose 10, the outer edges are slightly beveled in order to facilitate the introduction of the contact sheet 6 into a guide groove 11 of a plastic nipple 12 su enable. The plastic nipple 12 is at the end of the shaft in the assembled state 4 of the shaft 1 extending part of the switching element 5 and narrow-formed with the open on the inside su Guide groove 11 is provided for the contact plate 6.

On the plastic nipple 12 facing and this On the opposite side of the shaft, a notch 13 is provided so that a limiting cam 14 is created at the end of the shaft. The notch 13 is simultaneously formed so that it can serve as a travel plane for the contact plate 6. The two other shaft sides a opposite one another and offset by the sink notches 13 ν · 90 ° are towards the shaft end 4 also flattened. The flattening is provided in such a way that the switching element between the end edges 15 of this flattening «Ad the limiting cam 14 can be firmly engaged.

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Bas switching element 5 is designed according to the shaft 1 so that swei opposing inner sides 16 and 17 have flat surfaces. Bas switching element is thereby ! secured against twisting.

At the end of the switching element, the cross-section is reduced by the fact that at the two circle segments 18 and 19, bast elements 20, 21, 22 protruding from the inside are attached *

In the cement of the switching element there is a hanging 23 on the reinforcement molded on · From this bing on are the end of the Umscheltkreises Mn on the two sides 16, 17 of the switching element 5 slides 24 - provided. Through this slot 24, the ends are 2 $, 26 the switching element 5 is sufficiently elastic to move the switching element trots the Terringerten cross-section over the Limiting Noekan 14 on the shaft 1 and the introduction of the Xcontact plate ·· 6 in the guide groove U su enable · That Contact sheet 6 is introduced here in such a way that the bast nose 10

14 engages. The Xontaktblach 6 is long

the axis of rotation 27 and limited movable in all directions. By This mobility in all directions is a nareie contact of the two contact surfaces 8, 9 old conductor tracks 28 a circuit board 29 also guaranteed when the two Contact surfaces not in a plane parallel to the circuit board 29 lying. Between the forked legs, over the shaft end protruding, tad · dem contact plates »6 and dam plastic nipples 12, a compression spring 50 is attached. SLe spring force This compression spring 3 © determines the contact swisenan Kontaktbleoh 6 and the circuit board 29. The lückholf eder 3

alt the compression spring 30 the total key pressure. i «« Op.

SLa «ami des Breoaensbsmdes their turning takes place dam button 2, the »3 · in three mm each 12flP Tersetste EinrasM »ar iatj der TastamkmopX im« consequently mm 360 ° adjustable. When you turn the taateaknopf it »41a KomtaktHicfee 8 as a result of the / exBamtixsLsebfam Jemacommmc dam ATeefcmfc ^ electtam ο um the contact file 9.

Ia example is the radial distance of the contact surface 9 from the axis of rotation 27 approximately and that of the contact surface 8 larger as a ball · Corresponding to the three snap-in threatening positions, there are three conductor tracks 28 on the opposite side of the Kantipktblech ^ lying circuit board 29 attached. By pressing the button « 2 are those corresponding to the respective bank account Conductor tracks can be connected to one another. & quoted side game are the three conductor tracks over the contact sheet 6 with the one opposite to the contact surface 9 ^ and always suggesting it Conductor -connectable.

Bine - advantageous further development of the fire is shown in Kg. 2. By means of a multi-level arrangement of contact surfaces 51, 32 on the contact member 6, several conductor tracks can be connected to one another ^{in several planes 33, 3 1 I-.} In this lall, the contact member can not consist of a contact plate, but advantageously consist of an insulating body which has fork-shaped formations in several planes. On this. Formations are applied to conductive surfaces that are connected to one another in one or more levels. In this multi-level arrangement, the key top 2 is however. only rotatable by less than 360 °.

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Claims (13)

· A et · «Protection requirements: 1. Xontaktfinger rotatable and displaceable in the direction of the axis of rotation by push or slide buttons for contacting various conductor tracks on circuit boards, in particular strip circuit boards of television sets, characterized in that the contact finger consists of an actuating member (1) with at least one contact member (6) and the contact member (6) with at least two contact surfaces (8 and 9), which are connected to one another and have different radial distances from the axis of rotation (2?), Is arranged on the actuating member (1) and the contact member (6) when the actuating member is pressed (1) on a printed circuit board (29) different conductor tracks (28) contacted, the Waal of the s »connect the conductor tracks through. Rotation of the actuator can be carried out. 2 · Contact finger according to claim 1, characterized in that the contact surfaces (8, 9) have the ability to find the actuating element. (1) protrude. 3 · Contact finger, any one of the claims 1 or 2, characterized overall Vatm "" - i ""'m et that are connected to each other by multi-stage arrangement of contact areas on the contact member (6) has two or more conductor tracks in several planes · 4 · contact finger according to at least one of claims 1 to 3 » thereby k ^{Ar> T |} * * ^>"'net> that of the axis of rotation (27) at least approximately, and the contact surface (8) is larger than Hull ei is the radial distance of the contact surface (9). 5 · Contact finger according to at least one of claims 1 to 4, since ^T>T> ch reek ^ T ** """-^" ftet « that the actuating member (1) can be locked in different positions when rotating 6. contact finger according to at least one of claims 1 to 5t, characterized in that the contact member (6) is arranged eccentrically to the axis of rotation (2?). 7. Contact finger according to at least one of Claims 1 to 6, characterized in that the contact member (6) is designed as a fork-shaped contact plate. 71459333013.72 τ »
* • · Γ · - 6 - C 8. Contact finger according to at least one of claims 1 to 7 » gekennzeichnfet that the actuating member (1) is designed as a shaft, on the end of which a Umschaltglie" (5) is locked, which serves to support and fix the contact sheet (6) . 9. Kcmtaktfinger according to at least one of claims 1 to 8, characterized geke ^wTig ei ^ft ^ ^<T> et9 that a plastic nipple (12) is formed on the switching element (5) eccentrically to the Itarehachse (27), which is formed with a guide groove (11) 'provided rsfc, in which the Kcetaktblech (6) is stored. 10. Contact finger according to at least one of claims 1 to 9, characterized in that g »ir« M »t« » · * ft! Iw« »- fc _| that at the end of the Om8cb. * JLtgliedes (5) on two opposite sides (16, 17) slots (24) are provided through which the bath parts (23, 2S) of the switchover member are sufficiently elastic to snap the Umecbalt member onto the shaft and to enable the introduction of the contact plate (6) into the guide groove (11). 11. Contact finger according to at least one of claims 1 to 10, daw «jwTwft ii, g ^ frwn iriKgicjmgt- that between the fork-shaped contact plate (6) and the plastic nipple (12) a compression spring (30) is attached. 12. KontaktfingeT according to at least one of claims 1 to 11, because »* by PiTnWmMiItIiWt ₁ that with the spring force of the compression spring (3 ^ the contact pressure of the contact plate (6) on the circuit board (29) can be selected. 13. Contact finger according to at least one of claims 1 to 12, characterized in that the compression spring (30) together with the return spring (3) gives the total key pressure. ? 1459333i3.7t